<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
  <script src="../../../vue.js"></script>
</head>

<body>
  <div id="app">
    <h1>计数器{{count}}</h1>
    <!-- 直接写事件 -->
    <button v-on:click="count++">累加</button>
    <button v-on:click="add">累加</button>
  </div>
  <script>
    Vue.config.productionTip = false
    const vm = new Vue({
      el: "#app",
      data(){
        return{
          count:0

        }
      },
      //先在methods里面写些事件,按钮调用这个事件
      methods:{
        add(){
          this.count++
        }
      }
    });
  </script>
</body>
</html>